A reducer casing structure is disclosed, which comprises a front casing, a rear casing and a connecting column; the front casing and the rear casing are sealedly connected to form therein a cavity structure for accommodating a reducer; the connecting column is provided in the cavity structure and is detachably or partially detachably connected between the front casing and the rear casing, the connection mode of the connecting column with the front casing and the rear casing is bolt connection or integrated casting, the connecting column is used to improve connection strength of the reducer casing structure, reduce casing vibration and improve NVH performance of the reducer. The reducer casing structure according to the present disclosure reduces the deformation of the front casing and the rear casing of the reducer during operation, and improves the NVH of the reducer itself or the whole power assembly; moreover, the reducer casing structure is easy to install and occupies less space.

A window covering includes a housing, a covering material, a spindle, and a driving device. The spindle and the driving device are provided at the housing. The driving device includes a motor having a shaft, and an epicyclic gearing decelerating device having an input end and an output end connected to the shaft and the spindle, respectively. Whereby, the spindle can drive the covering material to expand or to collapse. The epicyclic gearing decelerating device includes a ring portion and at least a planet gear assembly which is coupled between the input end and the output end. The planet gear assembly includes a plurality of planet gears having a Shore A durometer hardness of 45-90, which is rotatable along the fixedly provided ring portion. While being driven to move, a lower end of the covering material moves at a speed higher than 65 mm per second.

A window covering includes a housing, a covering material, a spindle, and a driving device. The spindle and the driving device are provided at the housing. The driving device includes a motor having a shaft, and an epicyclic gearing decelerating device having an input end and an output end connected to the shaft and the spindle, respectively. Whereby, the spindle can drive the covering material to expand or to collapse. The epicyclic gearing decelerating device includes a ring portion and at least a planet gear assembly which is coupled between the input end and the output end. The planet gear assembly includes a plurality of planet gears having a Shore A durometer hardness of 45-90, which is rotatable along the fixedly provided ring portion. While being driven to move, a lower end of the covering material moves at a speed higher than 65 mm per second.

A steering apparatus of a vehicle includes: a dust pack housing coupled to a top portion of a dust cap, which is combined with a rack housing to surround a pinion shaft, the dust pack housing disposed between and supporting a dash panel of the vehicle and the dust cap; and a noise attenuation member disposed between the dust pack housing and the pinion shaft and having plate shape so that an inner side of the noise attenuation member is spaced apart from the pinion shaft and an outer side of the noise attenuation member is fitted to the dust pack housing to attenuate noise that is transmitted to the inside of the dust panel.

A steering apparatus of a vehicle includes: a dust pack housing coupled to a top portion of a dust cap, which is combined with a rack housing to surround a pinion shaft, the dust pack housing disposed between and supporting a dash panel of the vehicle and the dust cap; and a noise attenuation member disposed between the dust pack housing and the pinion shaft and having plate shape so that an inner side of the noise attenuation member is spaced apart from the pinion shaft and an outer side of the noise attenuation member is fitted to the dust pack housing to attenuate noise that is transmitted to the inside of the dust panel.

A Powersports vehicle is disclosed which includes a frame, ground engaging members supporting the frame, comprising at least two front wheel, and a power source for driving the front wheels. A front drive is coupled to the power source and to the front wheels, the front drive being coupled to the frame through isolation mounts to reduce vibration of the front drive through the frame.

A Powersports vehicle is disclosed which includes a frame, ground engaging members supporting the frame, comprising at least two front wheel, and a power source for driving the front wheels. A front drive is coupled to the power source and to the front wheels, the front drive being coupled to the frame through isolation mounts to reduce vibration of the front drive through the frame.

A differential gear device for a vehicle including a housing, a pinion shaft provided inside the housing, a pinion gear respectively mounted on both ends of the pinion shaft, and a pair of side gears respectively disposed on both sides of a width direction of a vehicle and engaged to the pinion gear. A disconnector actuator system is coupled to one side gear and a drive shaft is coupled to the other side gear among the pair of the side gears. The differential gear device for the vehicle includes a noise reduction unit provided between the cover to which the drive shaft is coupled and the other side gear to prevent a whine noise from being generated between the pinion gear and the other side gear during the operation of the disconnector actuator system.

A differential gear device for a vehicle including a housing, a pinion shaft provided inside the housing, a pinion gear respectively mounted on both ends of the pinion shaft, and a pair of side gears respectively disposed on both sides of a width direction of a vehicle and engaged to the pinion gear. A disconnector actuator system is coupled to one side gear and a drive shaft is coupled to the other side gear among the pair of the side gears. The differential gear device for the vehicle includes a noise reduction unit provided between the cover to which the drive shaft is coupled and the other side gear to prevent a whine noise from being generated between the pinion gear and the other side gear during the operation of the disconnector actuator system.

A powertrain torque roll restrictor includes a first bracket having an elongated body defining a first bracket opening at a distal end and a central axis, a second bracket coaxial with and adjacent to the first bracket, and a third bracket coaxial with and adjacent to the second bracket opposite from the first bracket, with the third bracket defining a third bracket opening cooperable with the first bracket opening. The second bracket defines a second bracket opening receiving the elongated body such that the second bracket is positioned about the elongated body. The powertrain torque roll restrictor further includes a first rubber element positioned between the first bracket and the second bracket, and a second rubber element positioned between the second bracket and the third bracket, with the brackets being configured to hold the respective rubber element in compression.